Weil-McLain Understanding the Reset Button on Boilers

Page 17

Burner Controls

Figure 1 1a. – Interrupted ignition, valve-on delay only (no motor-off delay)

Figure 1 1b. – Interrupted ignition, valve-on delay and motor-off delay

L1

L2 SAFETY AND

OPERATING

LIMITS

IGNITER

MOTOR

OIL VALVE

60

70

 

L1

 

50

W

 

 

80

 

 

 

50

80

 

L2

SAFETY AND

 

R

 

 

OPERATING

60

70

 

 

 

 

 

 

LIMITS

THERMOSTAT

 

 

 

 

 

 

 

IGNITER

 

IGNITER

 

 

 

 

L2 (IGN)

 

 

 

 

MOTOR

 

 

 

 

L2 (MTR)

 

 

MOTOR

 

L1LIMIT

L1 -

LIMIT

 

 

 

LIMIT

JUMPER

 

 

L2

 

 

 

 

VALVE

TR

 

OIL VALVE

 

L2 (VLV)

TW

 

 

 

 

60

70

 

50

80

 

 

W

 

 

R

 

50

80

 

60

70

 

THERMOSTAT

 

 

IGNITER

 

 

L2 (IGN)

 

 

MOTOR

 

 

L2 (MTR)

 

 

L1

 

 

LIMIT

TR-TW

 

L2

JUMPER

 

VALVE

TR

 

L2 (VLV)

TW

CAD

TR-TW TERMINALS

 

CELL

LOCATED ON OPPOSITE

 

CAD CELL

SIDE OF CONTROL

CAD CELL

 

CAD

TR-TW TERMINALS

CELL

LOCATED ON OPPOSITE

 

SIDE OF CONTROL

Reset Button Operation

Table 2 explains what action the control will take when the reset button is pressed for different lengths of time during the various burner operating states.

Table 2 - Reset Button Operation

If the burner is in the

 

Pushing the reset button will:

 

 

 

 

 

 

 

below state:

Button Click

 

 

Button Hold

 

Button Hold

 

 

(press < 1 second)

 

(press > 1 second)

 

(press 15+ seconds)

Lockout

 

Reset from Soft Lockout

 

Reset from Restricted (Hard)

 

 

Lockout

 

 

 

 

 

 

 

Valve-on Delay, Trial for

Go to Pump Prime (see

 

Disable the Burner:

 

Enables Pump Priming:

Ignition, Ignition Carryover

“Priming the Pump” above)

 

Any time the burner is running,

 

After the reset button has been

 

 

 

 

press and hold the reset button

 

held for 15 seconds, the button

 

 

Yellow light flashes to indicate

 

 

Run (igniter is shut off)

cad cell resistance. See “Cad

 

to disable the burner. The

 

can then be clicked during the

Cell Resistance Indicator” for

 

burner will remain off as long

 

next ignition sequence to enter

 

 

table of resistance values.

 

as the button is held.

 

Pump Prime mode.

Motor-Off Delay,

No action

 

 

 

 

 

Standby

 

 

 

 

 

 

 

Pump Prime

 

No action

 

Exit Pump Prime mode and return to Standby

Table 3 - Status Lights

 

 

 

 

 

 

 

 

 

 

 

 

Light Color

 

On Continuously

 

 

Flashing

 

 

 

 

 

 

Red

Restricted (Hard) Lockout

 

 

Soft Lockout

 

Green

Flame Sensed during normal operation (Could

Recycle

 

 

be stray light during standby)

 

 

 

 

 

Yellow

Control is in Pump Prime mode or

Reset button currently held for 15+ seconds.

Cad Cell resistance. See “Cad Cell Resistance Indicator” on page 18 for a table of resistance values.

Page 16

6104BAFG6104BAFGR065

Image 17
Contents R02 01/09 To the Homeowner or Equipment Owner To the Professional, Qualif ed Installer or Service AgencyPotential for Fire, Smoke and Asphyxiation Hazards Information To Be Used Only By Qualif ed Service Technicians Table of ContentsHazard Definitions FeatureGeneral Information Indicates a hazardous situWeekly General Information To the OwnerBurner Specif cations Air Tube Combination ATC codes General SpecificationsInspect Chimney or Direct Vent System Tion Hazard Inspect/Prepare Installation SiteClearances to burner and appliance Chamber DimensionsCombustion chamber Burner retrof t- ting NozzleInspect/Prepare Installation Site Prepare the Burner Mount burner on appliance Prepare the BurnerBurner Dimensions Check/Adjust ‘Z’ Dimension ‘F’ headsCheck/Adjust ‘Z’ Dimension L1 & L2 Heads Fuel Line Valves and Filter Installing the Oil Tank and Supply SystemBurner installed at jobsite Wire burnerSpecial wiring required with covered burners Frozen Plumbing Water Damage HazardFeatures WiringBurner Controls GeniSys Model 7505 Control Fire or Explosion HazardBurner Controls Light Color On Continuously Flashing Reset Button OperationControl System Features Typical Burner WiringResetting From Restricted or Hard Lockout Cad Cell Resistance IndicatorStart up burner/set combustion Hot Gas Puff-Back Heavy Smoke HazardStartup / Checkout Check Safety FeaturesStartup/Checkout Set combustion with instrumentsShutting the Burner Off Perform regular maintenanceReplace the blower wheel Blower wheel assemblyPage Description Warranty

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